\chapterEt{Introduction}

Cross-Site Scirpting is one of the vulnerabilities which exploded since 2005 and the complexification of the web pages. In this report, i'll try to explain how the css attack is set up and displayed to the victims in a theoritical way, and then show two examples of it.

\begin{description}

\item[The chapter \ref{ch:description}] describe the Common Vulnerabilities and Exposure Database and explain the general process used by css exploits.

\item[The chapter \ref{ch:samy}] develops the Samy Worm procedure and detailled tricks used.

\item[The chapter \ref{ch:mantis}] shows us how we can easily used detailled vulnerabilities on real targets.

\end{description}
